429 results about "Throttle opening" patented technology

The invention discloses a coal mine underground unmanned vehicle trajectory tracking method and system. The method comprises the steps that S1, a trajectory prediction module of an unmanned vehicle and a vehicle transverse dynamics tracking error model are established; s2, designing a transverse controller based on the vehicle transverse dynamics tracking error model, and obtaining a front wheel steering angle control instruction of the unmanned vehicle; s3, designing a longitudinal controller to obtain the expected acceleration of the unmanned vehicle; s4, establishing a longitudinal inverse dynamic model of the unmanned vehicle, inputting the expected acceleration of the unmanned vehicle, and calculating to obtain the opening degree of an accelerator or the braking pressure; and S5, the speed of the unmanned vehicle is obtained based on the accelerator opening degree or the brake pressure, the front wheel rotation angle of the unmanned vehicle is obtained based on the front wheel rotation angle control instruction of the unmanned vehicle, and unmanned vehicle trajectory tracking is completed through transverse and longitudinal combined control. According to the method, a transverse and longitudinal cooperative control strategy is provided for the real-time performance and robustness requirements of the coal mine underground complex environment for trajectory tracking control, and the accurate tracking and anti-interference capability of the vehicle speed are achieved.

The present invention discloses a pedal jamming monitoring method for identifying braking intention based on multi-source data fusion, belonging to the field of automotive braking. S1: Synchronously collect the pressure applied to the brake pedal, the displacement of the brake pedal under the applied pressure, the displacement of the accelerator pedal, and the vehicle acceleration, and obtain the current driving environment information; S2: Calculate the pedal position change rate, the pedal force change rate, the throttle opening change rate, and the relative distance ratio between the current vehicle and the vehicle in front; S3: Use a random forest to generate a preliminary identification intention; S4: Generate a final identification intention; S5: Determine whether there is jamming. By adopting the above-mentioned pedal jamming monitoring method for identifying braking intention based on multi-source data fusion, through fusing multi-source data such as brake pedal displacement, pressure, throttle state, and environmental parameters, and combining mechanisms such as dual-model decision-making, dynamic threshold adjustment, and multi-rule weighted judgment, the accuracy, real-time performance, and environmental adaptability of brake pedal jamming monitoring are significantly improved.

The invention provides an electromagnetic clutch combination control method, a power system and a medium. The electromagnetic clutch combination control method comprises the steps that the real-time current of an electromagnetic clutch, the accelerator opening degree change rate and the vehicle speed are obtained; under the condition that the vehicle meets the pre-combination condition of the electromagnetic clutch, a first target value is determined according to the number of combination failures of the electromagnetic clutch, and current with the magnitude being the first target value is applied to an electromagnetic valve of the electromagnetic clutch so as to drive the electromagnetic clutch to be combined; under the condition that the real-time current of the electromagnetic clutch is larger than or equal to the first target value, preloading torque is determined based on the accelerator opening degree change rate and the vehicle speed; and controlling the output torque of the engine according to the preloading torque. The pre-combination time is shortened while successful combination of the electromagnetic clutch is guaranteed, and the dynamic property of the whole vehicle is improved.

The invention provides a self-adaptive control method and device for a supercharging system of a natural gas engine, and belongs to the field of engines. The rotating speed, the air inlet flow, first information and the required torque gradient of the natural gas engine are obtained, whether the natural gas engine is in the low-load working condition or not is judged based on the rotating speed and the air inlet flow, and the first information comprises the accelerator opening degree change rate, the rotating speed change rate, the supercharging pressure and the load change slope; when the natural gas engine is in the low-load working condition, determining whether the current working condition is a steady-state working condition or a transient working condition according to the first information; and under the condition that the current working condition is the steady-state working condition, the opening degree of the deflation valve is controlled to be in a full-open state, under the condition that the current working condition is the transient working condition, the transient working condition is divided into multiple transient grades according to the accelerator opening degree change rate and the required torque gradient, and the opening degree of the deflation valve is controlled according to the transient grades. According to the scheme, the problem that the economical efficiency and the dynamic property of the natural gas engine under low load are difficult to balance is solved.

The present application belongs to the technical field of vehicle mass online estimation, in particular to a vehicle mass online estimation method based on fuzzy logic and weighted least square method, comprising the following steps: 1) obtaining longitudinal acceleration sensor measurement value signal, longitudinal speed signal, engine output torque signal, gear signal, throttle opening signal, brake pedal signal and steering wheel angle signal from vehicle CAN bus; 2) correcting the measurement value of longitudinal acceleration sensor; 3) calculating equivalent driving force and equivalent acceleration; 4) calculating working condition fitness degree by using fuzzy logic algorithm; 5) estimating vehicle mass by using weighted least square method; and 6) suspending and starting vehicle mass estimation. The structure is reasonable, and the accuracy and working condition adaptability of vehicle mass online estimation can be improved during use.

The present invention discloses a method and device for controlling the excess air coefficient of a natural gas engine. The method comprises obtaining a current engine state signal, a cylinder pressure signal, and the actual excess air coefficient of the previous control cycle; determining the actual air volume based on the relationship between the current engine state signal and a signal threshold, the cylinder pressure signal, and the engine's operating state; and determining a target natural gas injection volume based on the actual air volume and the actual excess air coefficient of the previous control cycle; determining a target throttle opening based on an engine accelerator pedal signal; adjusting the target natural gas injection volume in real time based on the target natural gas injection volume, controlling natural gas combustion based on the real-time adjusted target natural gas injection volume and target throttle opening, and obtaining the actual excess air coefficient of the current control cycle in real time, ensuring that the difference between the actual excess air coefficient and the target excess air coefficient always remains within the threshold range. Using this method, precise control of the actual excess air coefficient is achieved.

The invention relates to the field of vehicle control, in particular to an intelligent oil-saving sliding control method and system for an AMT commercial vehicle and the commercial vehicle, and the method comprises the steps: obtaining a gradient threshold interval and hysteresis width corresponding to a current state based on the total load of the vehicle, the real-time vehicle speed and the real-time road gradient; whether the engine water temperature and the accelerator opening degree signal meet preset fuel-saving sliding admission conditions or not is judged in real time; when all the access conditions are met and the real-time gradient and the vehicle speed are within the threshold interval, gear combination of the AMT gearbox is maintained, an engine is controlled to enter a fuel cut-off mode, and the vehicle enters an intelligent fuel-saving sliding state based on engine reverse towing; and if the real-time gradient exceeds the safety range, engine fuel oil supply is immediately recovered, and the in-cylinder braking or exhaust braking function of the engine can be cooperatively activated, so that the fuel-saving sliding state is stably quitted. And on the premise of ensuring compliance and safety of the whole process, the fuel economy is effectively improved.

The application discloses a fuel injection control method and device, electronic equipment and storage medium. The fuel injection control method comprises the following steps: after the accelerator pedal is stepped on, determining the engine torque demand according to the current working state of the engine and the stepping amount of the accelerator pedal, and determining the required intake air amount and the required fuel amount of the engine according to the engine torque demand; determining the current throttle opening of the engine according to the required intake air amount, and after the current fuel injection pulse width of the fuel injector is determined according to the required fuel amount, controlling the throttle valve to hit the target position corresponding to the current throttle opening, and controlling the fuel injector to open to the current fuel injection pulse width; acquiring the current fuel injection rail pressure, and determining the fuel injection mass flow of the engine by querying the fuel injection mass flow calculation MAP according to the current fuel injection pulse width and the current fuel injection rail pressure; and inputting the fuel injection mass flow into the engine model to output the current air-fuel ratio. The application realizes real-time adjustment of the fuel injection mass flow.

The utility model provides an oil-electricity hybrid power control system, which is suitable for a vehicle and comprises a storage battery, an integrated starter generator coupled to the engine; the hybrid power controller is used for receiving at least one of an accelerator opening degree signal, a brake signal, an engine rotating speed signal, a storage battery voltage signal, a starting signal and an idling stop signal and determining whether to perform one of a starting mode, a charging mode, an auxiliary power judgment mode, a regenerative charging judgment mode and an idling stop judgment mode according to the at least one of the accelerator opening degree signal, the brake signal, the engine rotating speed signal, the storage battery voltage signal, the starting signal and the idling stop signal; when the hybrid power controller is in a charging mode, the integrated starter generator is driven by the engine to generate and output a first AC voltage to the hybrid power controller, so that the hybrid power controller performs switching voltage regulation control according to the first AC voltage to generate output power to charge the storage battery and the vehicle load.

The invention discloses an engine multi-vehicle-type adaptive NVH quality optimization method and system, and belongs to the technical field of automobile engine debugge.The method comprises the steps that after an engine is installed on a to-be-adapted vehicle, vehicle working condition data are collected in real time, the vehicle working condition data comprises a vehicle speed, an accelerator opening degree, an engine rotating speed, a gear, a hydraulic torque converter locking state and an engine oil temperature signal; the vehicle working condition data is compared with the working condition of the engine noise sensitive working condition, and whether the engine noise sensitive working condition is entered or not is recognized; when the engine has the noise sensitive working condition, an NVH control strategy embedded in an engine electronic control unit is activated; the NVH control strategy comprises adjustment of an engine ignition angle and oil injection parameters; the engine is controlled according to the ignition angle optimization control instruction and the oil injection parameter optimization instruction; and when the vehicle runs out of the working condition of the noise sensitive working condition of the engine or gear shifting is completed, the conventional combustion control logic is recovered. And the rising rate of the pressure in the cylinder is effectively reduced, so that the structural knocking noise within the range of 150-600Hz is inhibited.

The invention provides a vehicle control method and related equipment, and the vehicle control method comprises the steps: obtaining a first gradient of a first ramp, a first accelerator opening degree of a target vehicle and a first torque value mapped by the first accelerator opening degree under the condition that a starting operation of the target vehicle on the first ramp is detected; determining a target torque value of a motor in the target vehicle according to the first gradient, the first accelerator opening degree, the first torque value and a prediction model; and controlling the motor to output torque according to the target torque value so as to enable the target vehicle to start from the first ramp. According to the method, the starting efficiency of the vehicle on the ramp is improved.

The invention relates to a motor zero-crossing control method, system and device and a medium. The method comprises the steps that the working condition of a motor is monitored; when the motor enters the zero-crossing working condition, the accelerator opening degree, the accelerator opening degree change rate, the motor rotating speed and the vehicle speed of the vehicle are obtained; according to the rotating speed of the motor and a pre-obtained inter-tooth gap, calculating zero-crossing torque withdrawal duration; according to the accelerator opening degree, the accelerator opening degree change rate and the vehicle speed, the zero-crossing torque withdrawal moment and the zero-crossing torque withdrawal torque of the motor are determined; and under the zero-crossing working condition, the motor is controlled to operate according to the zero-crossing torque withdrawal torque and the zero-crossing torque withdrawal duration at the zero-crossing torque withdrawal moment. The method is suitable for vehicles with various driving forms, and the driving smoothness and comfort can be remarkably improved.

The invention discloses a throttling valve with throttling opening controlled by an electric cylinder and a working method of the throttling valve, and relates to the technical field of pressure regulation of throttling valves. A pressing assembly for pressing a valve element downwards is arranged between a frame and a valve deck; pulling assemblies used for pulling down the valve element are arranged on the left side wall and the right side wall of the conveying pipe correspondingly, the pulling assembly located on the left side comprises a blind groove formed in the inner side wall of the conveying pipe and a nut fixedly arranged on the left side of the conveying pipe and opposite to the blind groove in the left-right direction, a pin shaft is fixedly arranged between the front wall and the rear wall of the blind groove, and an L-shaped force transmission block located in the blind groove is rotationally installed on the pin shaft; a screw is in threaded connection with the interior of the nut and extends into the blind groove, an arc-shaped end is fixedly arranged at the extending end of the screw, and the arc-shaped end and the long block of the L-shaped force transmission block are opposite in the left-right direction. The pressure regulating valve has the beneficial effects that the valve element moving in place can be prevented from continuously moving upwards, and the pressure regulating precision is higher.

The invention discloses a vehicle engine control method and device and a vehicle, belongs to the technical field of vehicle control, and aims to solve the technical problems that the pressure in an air inlet pipe of an existing engine system is rapidly increased to be very high when a user loosens an accelerator, and noise exists during pressure relief. The method comprises the steps that in response to release of an accelerator pedal of a vehicle, whether an engine is in a fuel cut-off forbidding working condition or not is judged; if yes, the throttle valve is controlled to be closed after being delayed for a first preset duration and / or closed at a preset speed, the fuel injection quantity of the engine is reduced, and the engine charges a battery; and if not, the throttle valve is controlled to increase the opening degree and / or keep the opening degree of the throttle valve to be maximum, and oil injection to the engine is stopped. According to the method, when a user loosens an accelerator, the pressure in the air inlet pipe can be stably reduced, noise generated during pressure relief is eliminated, meanwhile, redundant power generated during pressure relief can be utilized, and the fuel economy is improved while the customer experience is improved.

The invention relates to an engine low-pressure starting control method in a high-pressure oil pump fault mode, which is used for controlling the opening degree of a throttle valve and comprises the following steps of: calculating starting idle speed air quantity according to starting compensation air quantity and cooling machine compensation air quantity; the idle speed demand torque is calculated by multiplying the torque conversion coefficient of the air quantity; calculating an engine starting torque by adding an engine friction torque; calculating an expected throttle flow by multiplying the flow conversion coefficient of the torque; the initial throttle opening degree is obtained; the opening degree of the starting throttle valve is obtained according to the initial throttle valve opening degree and the opening degree of the starting throttle valve in the low-pressure mode; an oil injection mode is controlled, and a primary oil injection pulse represents a number-letter combination code through an index; and normalizing a letter part in the numeric-letter combination code by using binary numbers to generate a binary number code. Compared with the prior art, the engine is started in the fault mode, and limp home is achieved.

The invention discloses a hydrogen engine crankcase hydrogen concentration control method, and relates to the field of hydrogen engines, and the method comprises the steps: placing a hydrogen engine on a rack for testing, and obtaining a target hydrogen concentration, an actually measured hydrogen concentration and a crankcase blow-by amount; according to the target hydrogen concentration, the actually measured hydrogen concentration and the crankcase blow-by amount, the target working condition supplementary air amount is calculated; according to the target working condition supplementary air amount, a full-working-condition supplementary air amount database is generated based on the rotating speeds and loads of the different working conditions; obtaining the amount of fresh air needing to be supplemented under the current target working condition according to the full-working-condition air supplementing amount database; the air inlet pressure, the air inlet temperature and the crankcase pressure are obtained; the method comprises the following steps: calculating the opening degree of a throttle valve by combining the air inlet pressure, the air inlet temperature and the crankcase pressure, comparing the hydrogen concentration measured by a hydrogen concentration sensor according to the current target working condition with the target hydrogen concentration to obtain a hydrogen concentration deviation and generate a corrected fresh air amount, and carrying out closed-loop control on the actual crankcase hydrogen concentration by adjusting the opening degree of the throttle valve.

The invention discloses a gas engine cold start difficulty diagnosis method, system and device and a readable storage medium, and relates to the field of cold start fault detection, and the method specifically comprises the steps: determining an initial idle speed segment based on a real-time vehicle speed, a real-time engine rotation speed, a neutral gear signal and a clutch signal when the lowest environment temperature is detected to be smaller than a preset environment temperature threshold value; the initial idling segment is a working state when the vehicle is static and an engine is in an idling mode; in the initial idle speed segment, based on the maximum value of the engine rotating speed, the real-time engine rotating speed, the real-time gas rail pressure, the real-time gas rail temperature, the engine water temperature at the starting point of the initial idle speed segment, the real-time accelerator opening degree and the fault code, the cold start difficulty result of the gas engine is determined; the fault code is a corresponding fault code when the pressure of the intake manifold is smaller than a preset pressure threshold value of the intake manifold. According to the invention, specific faults of cold start difficulty can be identified efficiently and accurately.

The invention discloses an automobile engine multi-mode electronic control system and a control method thereof, and particularly relates to the technical field of automobile engine multi-mode electronic control, the system comprises a sensor module, a mode switching module, an execution control module and a diagnosis module, the sensor module collects parameters such as rotating speed and air inlet pressure in real time; the mode switching module judges four working conditions of idling, cruising, accelerating and pressurizing based on threshold logic; the execution control module calls strategies such as PID (Proportion Integration Differentiation) control and EGR (Exhaust Gas Recirculation) rate calculation aiming at different modes to realize accurate adjustment of parameters such as throttle opening and boost pressure; the diagnosis module monitors faults of the sensor and the actuator in real time through voltage out-of-limit detection, position deviation comparison and temperature correlation analysis.

The invention discloses a virtual fuel vehicle power assembly mapping method and system. The method comprises the steps that the vehicle speed of an electric vehicle and input signals of an accelerator pedal and a brake pedal are received; performing nonlinear mapping on the accelerator pedal input signal to generate a virtual accelerator opening degree, and performing cooperative control in combination with a brake pedal signal; based on the vehicle speed and the virtual accelerator opening degree, a virtual target gear is determined through a multi-dimensional gear shifting diagram and a self-adaptive gear shifting strategy; the method is characterized in that a dynamic slip frequency factor related to the vehicle speed, the virtual accelerator opening degree and the brake pedal opening degree is introduced in the non-gear-shifting state so as to simulate the slip frequency effect of a torque converter; in the gear shifting state, transient smooth transition of the rotating speed is simulated. According to the method, the nonlinear dynamic behavior of the fuel vehicle can be accurately simulated in real time with low calculation overhead, the authenticity and immersion of simulation are remarkably improved, and powerful support is provided for virtual testing, control system development and man-machine interaction application.

The embodiment of the invention provides a vehicle control method and device, equipment and a storage medium, and relates to the technical field of vehicles. The method comprises the following steps: acquiring vehicle state information of a vehicle; wherein the vehicle state information comprises the running speed of the vehicle and the accelerator state of a two-way accelerator rotating handle of the vehicle; if the accelerator state of the two-way accelerator rotating handle is the forward accelerator opening degree, the motor is controlled to provide driving force of forward torque for the vehicle according to the forward accelerator opening degree so that the vehicle can move forwards; and if the running speed of the vehicle does not exceed the vehicle static threshold value and the accelerator state of the two-way accelerator rotating handle is the reversing accelerator opening degree, the motor is controlled to provide driving force of negative torque of linear deceleration for the vehicle according to the reversing accelerator opening degree so that the vehicle can run in a reversing mode. The vehicle is controlled to advance or reverse through the two-way accelerator rotating handle, and the safety of the vehicle is improved.

The application discloses a hydrogen engine crankcase hydrogen concentration control method, and relates to the field of hydrogen engines, which comprises the following steps: placing a hydrogen engine on a test bench to test, obtaining a target hydrogen concentration, an actually measured hydrogen concentration and a crankcase blow-by amount; calculating a target working condition supplementary air amount according to the target hydrogen concentration, the actually measured hydrogen concentration and the crankcase blow-by amount; generating a full working condition supplementary air amount database according to the target working condition supplementary air amount, based on the rotating speed and the load of different working conditions; obtaining the fresh air amount required to be supplemented by a current target working condition according to the full working condition supplementary air amount database; obtaining an intake air pressure, an intake air temperature and a crankcase pressure; combining the intake air pressure, the intake air temperature and the crankcase pressure to calculate a throttle opening degree; comparing the hydrogen concentration measured by a hydrogen concentration sensor according to the current target working condition with the target hydrogen concentration to obtain a hydrogen concentration deviation; generating a corrected fresh air amount; and performing closed-loop control on the actual crankcase hydrogen concentration by adjusting the throttle opening degree.

The invention relates to a decoupling sliding-mode predictive control method for a hypersonic aircraft and a storage medium. The decoupling sliding-mode predictive control method comprises the following steps: S1, constructing a longitudinal dynamic model of an elastic hypersonic aircraft; s2, constructing a speed ring sliding mode surface including a speed tracking error proportional term and a speed tracking error integral term according to the speed subsystem, and optimizing the speed ring sliding mode prediction control objective function to obtain an accelerator opening degree control law; s3, constructing a height ring sliding mode surface containing a height tracking error proportional term and a height tracking error differential term according to a height channel of the height subsystem, and optimizing the height ring sliding mode prediction control objective function to obtain an expected pitch angle virtual control quantity; and S4, according to the expected pitch angle virtual control quantity and a pitch angle channel of the height subsystem, constructing a pitch angle ring sliding mode surface containing a pitch angle tracking error proportional term and a pitch angle tracking error differential term, and optimizing a pitch angle ring sliding mode prediction control objective function to obtain an elevator deflection control law.

The application discloses a kind of vehicle control method, device and vehicle, it is related to vehicle technical field.The method comprises: obtaining driving information, wherein, driving information is used to determine the acceleration of vehicle, throttle opening state and brake pedal state;In the preset time interval, target driving mode is determined based on driving information, wherein, target driving mode is used to represent driving style;Target torque is determined based on target driving mode;Vehicle is controlled based on target torque.The application solves the technical problem that the driver is intervened or reminded by analyzing driving habits in the related art, which leads to poor comprehensiveness, poor learning, low efficiency and poor driving experience.

The application provides a torque control method, device, equipment and medium of a natural gas engine, and the method comprises the following steps: determining a target control mode required by a current natural gas engine, and acquiring a target parameter corresponding to the target control mode; inputting the target parameter into a preset throttle opening formula to obtain a target throttle opening; and controlling the torque of the natural gas engine according to the target throttle opening; wherein the throttle opening formula is obtained by combining a throttle equation used for throttle control and a speed density method equation. The throttle opening formula is obtained by combining the throttle equation used for throttle control and the speed density method equation according to the characteristics of the natural gas engine. For different target control modes, the throttle opening formula adopts different target parameters to calculate the throttle opening, so that the torque corresponding to the throttle opening can adapt to the target control mode, thereby improving the controllability of the natural gas engine.

The invention discloses an electric vehicle sound wave simulation method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle development. The method comprises the steps that dynamic driving signals of a vehicle are obtained, wherein the dynamic driving signals comprise a vehicle speed signal, an accelerator opening degree signal and a virtual gear speed ratio signal; based on the vehicle speed signal and the virtual gear speed ratio signal, the virtual rotating speed of the vehicle under each virtual gear is determined; determining whether the vehicle meets a tempering sound effect triggering condition or not based on the virtual rotating speeds, the accelerator opening degree signals and the change characteristics of the virtual gears of the vehicle; and when the vehicle meets the backfire sound effect triggering condition, determining the dynamic simulation sound wave of the vehicle based on the virtual rotating speed and the recorded preset backfire sound effect. The driving experience of the user is improved.

The invention provides a method and device for determining the opening degree of an accelerator, a vehicle and a storage medium. According to the method, the current accelerator opening degree is detected in real time, and if the current accelerator opening degree is lower than the last learning value (historical learning value) and larger than the minimum self-learning threshold value, the learning value is gradually reduced through the current accelerator opening degree and the historical learning value so that the accelerator opening degree corresponding to the actual accelerator minimum position can be learned. The scheme does not completely depend on the current accelerator opening degree, and the current accelerator opening degree is a detection value and is prone to drifting due to change of a detection environment or aging of a detection device. According to the scheme, by taking the current accelerator opening degree as a reference and combining the historical learning value, the final learning value can reflect the real mechanical return-to-zero position, and the problem of zero drift caused by accelerator abrasion of the minimum accelerator opening degree is effectively solved. Furthermore, after the vehicle controller controls the vehicle on the basis of the final learning value, the accuracy of driving control can be improved.

Controller (200) for a hybrid vehicle, the hybrid vehicle comprising: a power distribution integration mechanism (40) comprising a ring gear (42) configured to work in a toothed manner with a driven gear (62), a sun gear (41) configured to rotate at a center of the ring gear (42), a planetary gear (43) located between the sun gear (41) and the ring gear (42) and configured to orbit the sun gear (41), and a planetary gear carrier (44) configured to rotate while the planetary gear (43) orbits; an internal combustion engine (10) comprising an output shaft (14) coupled to the planetary gear carrier (44); a first motor generator (71) arranged to operate in a toothed manner with the sun gear (41); a second motor generator (72) configured to operate in a toothed manner with the ring gear (42); a battery (77) connected to the first motor generator (71) and the second motor generator (72); and a battery controller (400) configured to calculate a state of charge (SOC) of the battery (77), an upper input limit (Win) of the battery (77), and an upper output limit (Wout) of the battery (77) using a voltage (VB) in the battery (77), a temperature (TB) of the battery (77), and a ratio of electric power in the first and second motor generators (71, 72), wherein the controller (200) comprises: an execution device (200a, 200b) configured to control the first motor generator (71) and the second motor generator (72) such that the electric power input to the battery (77) does not exceed the upper input limit value (Win) and an electric power output from the battery (77) does not exceed the upper output limit value (Wout), wherein the execution device (200a, 200b) is configured: controlling the engine (10) and the first motor generator (71) such that the engine speed (Ne) approaches a target engine speed, the target engine speed being set using a requested driving force; controlling the second motor generator (72) such that the requested driving force is achieved by power transmitted from the ring gear (42) to the driven wheel (62); performing a start to rotate the output shaft (14) using the first motor generator (71) in a state where a combustion operation of the internal combustion engine (10) is stopped, thereby causing a braking force generated by friction of the internal combustion engine (10) to act on the driven wheel (62); and to execute a valve opening limiting process that limits an increase in a throttle opening degree according to the upper input limit value (Win) when an increase request regarding the throttle opening degree is issued that is not based on an operation requesting a change in the braking force performed by the driver during the execution of the cranking.

The utility model relates to an automobile accelerator opening degree control device which comprises a supporting piece, a fixing structure and a clamping structure, the length of the supporting piece can be adjusted, and the two ends of the supporting piece are the first end and the second end. The fixing structure is hinged to the first end and comprises a fixing base, a fixing groove used for containing the front end of a cushion of the automobile seat is formed in the fixing base, and the fixing groove penetrates through the fixing base in the length direction of the front end of the cushion; the clamping structure is hinged to the second end, a clamping groove and a guide groove are formed in the clamping structure, the clamping groove is used for being matched with the accelerator pedal, the guide groove is formed in the groove side wall, opposite to the second end, of the clamping groove in a penetrating mode and penetrates through a groove opening of the clamping groove, and a connecting rod connected to the lower end of the accelerator pedal penetrates through the guide groove. The clamping structure and the fixing structure are respectively fixed with the automobile seat and the accelerator pedal, the support rod enables the automobile pedal to maintain a certain opening degree, the length of the support member is adjusted to adjust the opening degree of the accelerator, the test operation precision is improved, and the labor intensity of personnel is reduced.

This invention relates to an electronic gear shifting device for electric motorcycles, comprising an electronic shifting unit, an electronic clutch unit, and a throttle position sensor. Based on the rider's operation, the device outputs a shift signal, a clutch signal, and a throttle opening signal. A vehicle controller receives these signals and determines a target gear for the electric motorcycle. The vehicle controller then looks up a motor torque command based on the target gear and outputs the command to a motor controller. The motor controller then controls a power motor of the electric motorcycle, enabling the electric motorcycle to simulate the power performance of a conventional geared motorcycle without the need for a physical clutch or gearbox.

A control method for reducing NVH noise in a dual-clutch transmission comprises the following steps: 1) obtaining an engine torque threshold and setting a speed synchronization error threshold between the engine and a DCT input shaft; 2) entering an NVH noise control phase when the following conditions are simultaneously met: ① the throttle opening at the current moment is greater than zero and the throttle opening at the previous moment is zero; ② the DCT is not in the shifting process; ③ the TCS flag in the ECU is not triggered; ④ the real-time engine output torque is less than the engine torque threshold; 3) controlling the real-time engine output torque and the real-time clutch control torque in the following manner: 3-1) adjusting the real-time engine output torque; 3-2) obtaining a clutch control percentage; 3-3) if the difference between the real-time engine speed and the real-time DCT input shaft speed is greater than the speed synchronization error threshold, calculating a clutch target control torque and adjusting the clutch real-time control torque according to the calculated clutch target control torque.